A Russian Soyuz rocket lifts off May 29 carrying a Glonass navigation satellite.

Tuesday’s briefing begins with Russian media reports that Sunday’s otherwise successful launch of a Glonass navigation satellite was marred by a problem with the launcher’s upper stage.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...